Add PCIe lane equalization preset properties for 8 GT/s and 16 GT/s data
rates used in lane equalization procedure.

Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
---
 arch/arm64/boot/dts/qcom/x1e80100.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index a36076e3c56b..6a2074297030 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -2993,6 +2993,10 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
 			phys = <&pcie6a_phy>;
 			phy-names = "pciephy";
 
+			eq-presets-8gts = /bits/ 16 <0x5555 0x5555>;
+
+			eq-presets-16gts = /bits/ 8 <0x55 0x55>;
+
 			status = "disabled";
 		};
 
@@ -3115,6 +3119,8 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
 			phys = <&pcie5_phy>;
 			phy-names = "pciephy";
 
+			eq-presets-8gts = /bits/ 16 <0x5555 0x5555>;
+
 			status = "disabled";
 		};
 
@@ -3235,6 +3241,8 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
 			phys = <&pcie4_phy>;
 			phy-names = "pciephy";
 
+			eq-presets-8gts = /bits/ 16 <0x5555 0x5555>;
+
 			status = "disabled";
 
 			pcie4_port0: pcie@0 {

-- 
2.34.1

On 16.11.2024 2:37 AM, Krishna chaitanya chundru wrote:
> Add PCIe lane equalization preset properties for 8 GT/s and 16 GT/s data
> rates used in lane equalization procedure.
> 
> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/x1e80100.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> index a36076e3c56b..6a2074297030 100644
> --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
> @@ -2993,6 +2993,10 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
>  			phys = <&pcie6a_phy>;
>  			phy-names = "pciephy";
>  
> +			eq-presets-8gts = /bits/ 16 <0x5555 0x5555>;

If we make all of these presets u8 arrays, we can use the:

property = [0xff 0xff 0xff 0xff];

syntax

Konrad